Improvement in harness-operating mechanism for looms



N4 PETERS, PHO

n waited tant mi aan.

Imm Patent No. 106,571, daad August 23, 1870.

IMP-RvOVEMENT IN HARNESS-OPERATIN G- MCHANISM PQR LOQMS.

Tlie Schedule-referred to :in these Letters Patent and making part of the same To all whom it 'may concern' Be it known thatI, ALBERT R. FIELD, of Central Falls, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Harness Motion forLooms; and I do hereby declare thatthe following is a full, clear, Iand exactdescription thereof, which will enable-others skilled in the ait to make and use thesame, referencebeing had tp the accompanying drawing forming part ot' this specification. I

This invention relates to improvements in harness `motion for looms, and. consists in a novel arrangement of differential gears for turning one or two sets of tappet-shafts on their own axis, ivhile being carried around the shafts of drums on which they are mounted, said drums heilig arrangedin connection with a set of levers, so that the tappets of the said tappet-shafts will act upon them, all as hereinafter described.

Figure 1 is a transverse sectional elevation of my improved apparatus. y

Figure 2 is a front elevation of the same with a part sectional.

Similar letters of reference indicate corresponding pai-ts.`

A represents disks or drum-'heads, or it may he arms', mounted on shafts B, arranged in suitable supports, preferably one above the other.

These disks furnish bearings for four or more tappet-shafts, C, at one end, whichare similarly journaled at the other ends in toothed disks or wheels D, also invented on the shafts B and connected with the disks `Eiars'heeves 1)',or other means, so that they turn 'with'the saiddisks D. 'lhese ends of the said tappet-shaftsproject through the disks D, and have pinions, E, on them, nrlinich gear with the internally toothed disks or wheels F, which are also toothed externally, having the same number of teeth' as the/disks D, say eighty g the iu-V ternal ygears have4 also 'eighty teeth, and the pinions sixteen. i

G representsa drivingLshaft, having one pinion, I), oi' twenty-one teeth gearing` with the, upper wheel F, and another, M, of twenty teeth garingwit-h the upper wheel D. v

'Ihetwo wheels 11 E and D D are geared together.

rIhe tappet-shafts are provided with tappets I, pro.- jecting from each of their four sides, andarrangledin any order for action upon the levers K, pivoted at L,

and arranged between thedrums, as shown. It will be seen that in one revolution of the disk D,

the disks F, having the internalf gears, being driven by the wheel having one tooth more than the one driving disk D, and the pinion driving the latter makingl four revolutions to the one of the said disk 1 )the disk'F will gainfour teeth over D, whiel1 will cause the tappet-shafts `having pinionsV of sixteen teeth to turn one quarter of a revolution on their own axis; consequently, there being four of the said tappetshafts, each making four different changes, there .will

- be sixteen 'changesbefore Repeating, and any number of harnesses may be used. Y

Care'is taken to gear the pinions ot' lthetappet shafts with the disks F, so that the tappets will he in the right position to action the levers when they come aroundv to theml If a wheel of nineteen teeth be put in placeof wheel L the result will be the same, except that the wlreels F would fall behind the same number ot' teeth, and thetappet-shafts would be turned theother way.

\Vith five tappet-shafts and one pinion of sixteen and another of seventeen teeth on the driving-sluit, twenty changes could be made.

With sixtappet-shafts and the large gears, all having ninety-six teeth, and 'pinions of sixteen and seventeen teeth on thedrivi'ng'shat't,twenty-ibut` changes could he made.

Of course otherl "ariations of like character could be made, and almost any required number of changesv obtained, well calculated for fancy weaving,- such as i figured muslins, and the like.

This' anangementis well adapted for running the loom at high speedfthe motions being muclruiore smooth and easy than the ordinary arrangements of hooking and nnhookiug apparatus.

Thev machine may'be placed at the'end-oft-he loom, with the pinions LM on the crank-shaft of the loom, and the levers connected with two sets of 'levers on the loom, one above and the other below, vby str-aps or cords, or it maybe arranged in.any other approved- I propose, in souleA cases,; to use only one set of disks, A D E, for carrying and. operating the tappetshafts, the said tappets being-used to move the levers one way, and springs or weights being used to work lthem the other way.

Having thus described my invention,

I claim as new and desire to secure by Letters Pateut The levers K, in combination with' one or two sets of tappeti-shafts O, and pinions L M, and disks A D, and ihternall y toothed disk F, all arranged and operating substantially as described.

ALBERT R. FIELD.

` W'itness'cs:

HENRY E. WHIPPLE, WILLIAM KEENAN.- 

